cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A339645 Triangle read by rows: T(n,k) is the number of inequivalent colorings of lone-child-avoiding rooted trees with n colored leaves using exactly k colors.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 3
6 2
7 5
8 17
9 12
10 5
11 12
12 73
13 95
14 44
15 12
16 33
17 369
18 721
19 512
20 168
21 33
22 90
23 1795
24 5487
25 5480
26 2556
27 625
28 90
29 261
30 9192
31 41945
32 58990
33 36711
34 12306
35 2342
36 261
37 766
38 47324
39 321951
40 625088
41 516952
42 224241
43 57155
44 8702
45 766
46 2312
47 249164
48 2483192
49 6593103
50 7141755
51 3965673
52 1283624
53 258887
54 32313
55 2312

List of values

[1, 1, 1, 2, 3, 2, 5, 17, 12, 5, 12, 73, 95, 44, 12, 33, 369, 721, 512, 168, 33, 90, 1795, 5487, 5480, 2556, 625, 90, 261, 9192, 41945, 58990, 36711, 12306, 2342, 261, 766, 47324, 321951, 625088, 516952, 224241, 57155, 8702, 766, 2312, 249164, 2483192, 6593103, 7141755, 3965673, 1283624, 258887, 32313, 2312]